Channel fob fire-shuttebs



E. H. IVICCLOUD.

CHANNEL FOR FIRE SHUTTERS.

APPLlcATIoN 11150 ocT.28.1912.

l l 9&006. Patented Aug; 29,1916.

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EDWARD H. MCCLOUD, OF COLUMBUS, OHIO.

CHANNEL FOR FIRE-SHUTTERS.

Specification of Letters Patent.

Patented Aug'. 29, 1916.

Application led October 28, 1912. Serial No. 728,032.

specification.

The chief object of this invention is to provide improved means for holding a metallic channel, guide or other member for a fire shutter, curtain or the like so that it may expand when subjected to the heat of l'ire and be maintained in substantially straight or serviceable condition notwithstanding its expansion by heat.

The invention is embodied in the examples herein shown and described and then pointed out in the claims.

In the accompanying drawings-Figure 1 is a plan and horizontal sectional view looking down on one form of the invention. Fig. 2 is an elevation of the form of channel shown in Fig. 1 but on a smaller scale. Fig. 3 is a plan and horizontal sectional view looking down on another form of the invention. Fig. 4 is a horizontal section on the line :z2-m Fig. v5 and Fig. 5 is an elevation of the form of channel illustrated in Figs. 3 and 4L but on a smaller scale.

Referring first to the form of the invention shown in Figs. 1 and 2 the channel is made of an inner strip 6, a spacer member 7 and an outer strip Sriveted together by several rivets as at 9 s0 as to form at one side a longitudinal channel or way 10 for the sliding edge of the shutter or curtain and a longitudinal space at the opposite side for the holding members or blocks 11 which iit in said space. The blocks 11 have shanks 112t that project beyond the strip 8 and are perforated for the passage 0f securing bolts 12 turned into the wall or into the nuts of ordinary expansion shells 13 set into the wall at 14. The block 11 is also shown to have a teat 11b that projects into mortar space of the wall to prevent it from tilting on the shank of the bolt. There can be several of the blocks 11 suitably spaced to afford support for the channel or guide, but the channel or guide is shown as attached to the wall with the uppermost of the blocks 11 only as by means of a set screw 15. The screw or fastening 15 holds the channel from longitudinal movement in normal conditions but permits it perceptibly to expand when subjected to adequate heat of fire.

In Figs. 3, 4 and 5 the outer channel forming member 16 is shown as bent so as to form space for the holding blocks that is closed when the channel is placed against the wall. 17 designates the holding block. In this form the bolt 18 for securing the channel against movement in normal conditions can be passed through the outer channel forming member 16 and the uppermost block and the other blocks can be secured by screws or bolts 19 having their heads countersunk in the blocks so as to permit the channel to expand with reference to such blocks. Holes at 20 in the channel forming member are provided for the withdrawal of the securing bolts 19. The extension of the outer channel member so as to cover two sides of the blocks affords a stable connection between the channel and the block.

What I claim is- 1. The combination with a channel or like member subject to longitudinal expansion by the heat of re, of means for securing said member in position consisting of a holder embraced on two sides by portions of said channel member and means for'securing said member at one point to said holder.

2. The combination with a channel or like member subject to expansion by the heat of re, of means for securing said member consisting of a holder embraced on two sides by portions of said member, and means for securing said channel member at a iiXed point so as to be eXpansibleby adequate heat with reference to the holder.

3. The combination with a channel or like member subject to expansion by the heat of fire, said member provided with an opening, of means for securing said member consisting of a holder embraced by a portion of said member, means operable through said opening for securing the holder in position, and means for securing said member at a fixed point so as to be longitudinally eXpansible with reference to said holder by adequate heat.

EDWARD I-I. McCLOUD. Witnesses:

HARRY A. CLARKE, GEORGE M. FINCKEL.

Copies of this patent may be obtained for ve cents each, by addressing; the Commissioner of Patents, Washington, D. C. 

